Marvelous
Part of speech: adjective
Definition: Exciting wonder or surprise; astonishing; wonderful.
Example sentence: The waving of a pine tree on the top of a mountain - a magic wand in Nature's hand - every devout mountaineer knows its power; but the marvelous beauty value of what the Scotch call a breckan in a still dell, what poet has sung this?
Wondrous
Part of speech: adjective
Definition: Amazing, inspiring awe, "to be marvelled at".
Example sentence: For Philistines like me, the mysteries of Washington can be both perplexing and wondrous.